Arm support



FIG. 1 is a top perspective view of an arm support showing the newdesign;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a side elevational view thereof, the opposite side elevationalview being a mirror image; and,

FIG. 6 is a top plan view thereof.

CLAIM The ornamental design for an arm support, as shown and described.